Minecraft: Wizard Of Unknown's Spellbook

/give @p written_book{pages:['["",{"text":"SPELLBOOK\\n\\nOF UNKNOWN","bold":true,"underlined":true},{"text":"\\n\\n","color":"reset"},{"text":"There are 5 spells that You can cast. Just click on how powerful you want the spell to be, and the spellbook will cast it.","color":"black"}]','["",{"text":"CAST ","color":"black"},{"text":"FIRE SPELL \\u25b2","color":"dark_red"},{"text":"\\n\\n\\n","color":"reset"},{"text":"Fire: Level 1","color":"dark_red","clickEvent":{"action":"run_command","value":"/summon falling_block ^ ^3 ^3 {BlockState:{Name:\\"minecraft:magma_block\\"},Time:1b}"}},{"text":"\\n\\n","color":"reset"},{"text":"Fire: Level 2","color":"dark_red","clickEvent":{"action":"run_command","value":"/summon blaze ^ ^3 ^8"}},{"text":"\\n\\n","color":"dark_red"},{"text":"Fire: Level 3","color":"dark_red","clickEvent":{"action":"run_command","value":"/fill ~2 ~ ~-2 ~-2 ~ ~2 fire"}}]','["",{"text":"CAST "},{"text":"ICE SPELL \\u2587\\n\\n\\n","color":"blue"},{"text":"Ice: Level 1","color":"blue","clickEvent":{"action":"run_command","value":"/summon snowball ^ ^5 ^2"}},{"text":"\\n\\n","color":"reset"},{"text":"Ice: Level 2","color":"blue","clickEvent":{"action":"run_command","value":"/summon snow_golem ^ ^1 ^2"}},{"text":"\\n ","color":"reset"}]','["",{"text":"CAST ","color":"black"},{"text":"EARTH SPELL \\u2b24\\n\\n\\n","color":"dark_green"},{"text":"Earth: Level 1","color":"dark_green","clickEvent":{"action":"run_command","value":"/fill ^3 ^ ^3 ^-3 ^ ^3 stone"}},{"text":"\\n\\n","color":"dark_green"},{"text":"Earth: Level 2","color":"dark_green","clickEvent":{"action":"run_command","value":"/fill ^-3 ^ ^3 ^3 ^3 ^3 stone"}}]','["",{"text":"CAST "},{"text":"ELETRIC SPELL \\u26a1","color":"gold"},{"text":"\\n\\n\\n","color":"reset"},{"text":"Electric: Level 1","color":"gold","clickEvent":{"action":"run_command","value":"/summon lightning_bolt ^ ^ ^3"}}]','["",{"text":"CAST "},{"text":"HEAL \\u2665\\n\\n\\n","color":"dark_purple"},{"text":"Heal: Level 1 ","color":"dark_purple","clickEvent":{"action":"run_command","value":"/effect give @p minecraft:instant_health 3 1 true"}}]'],title:"Unknown Spellbook",author:"Unknown Wizard"}